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#![cfg_attr(not(feature = "rt"), allow(dead_code))]
//! Process driver.
use crate::park::Park;
use crate::process::unix::GlobalOrphanQueue;
use crate::signal::unix::driver::{Driver as SignalDriver, Handle as SignalHandle};
use std::io;
use std::time::Duration;
/// Responsible for cleaning up orphaned child processes on Unix platforms.
#[derive(Debug)]
pub(crate) struct Driver {
park: SignalDriver,
signal_handle: SignalHandle,
}
// ===== impl Driver =====
impl Driver {
/// Creates a new signal `Driver` instance that delegates wakeups to `park`.
pub(crate) fn new(park: SignalDriver) -> Self {
let signal_handle = park.handle();
Self {
park,
signal_handle,
}
}
}
// ===== impl Park for Driver =====
impl Park for Driver {
type Unpark = <SignalDriver as Park>::Unpark;
type Error = io::Error;
fn unpark(&self) -> Self::Unpark {
self.park.unpark()
}
fn park(&mut self) -> Result<(), Self::Error> {
self.park.park()?;
GlobalOrphanQueue::reap_orphans(&self.signal_handle);
Ok(())
}
fn park_timeout(&mut self, duration: Duration) -> Result<(), Self::Error> {
self.park.park_timeout(duration)?;
GlobalOrphanQueue::reap_orphans(&self.signal_handle);
Ok(())
}
fn shutdown(&mut self) {
self.park.shutdown()
}
}
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